The correct 709 should say at 3:45 It is our pleasure to introduce a mighty fine vocalist, Kay Starr470207 (1286) Lionel Hampton s/b 461207 (1286) Lionel Hampton490925 (4919) Gus Bivona s/b 590925. Bivona mentions an album he recorded in 1957. It is listed with that date at this link. And that matches the time period for shows with similar numbers.